| Acronym | Meaning |
| RCB | Remote Circuit Breaker |
| LEM | Launch Escape Monitor |
| SI | Center Support Operations (KSC Directorate) |
| BDCR | Baseline Document Change Request |
| EPDB | Electrical Power Distribution Box |
| RFC | Radio Frequency Charts |
| SAM | SAMPShuttle Automated Mass Properties |
| DTRD | Development Test Requirements Document |
| BS | Block Specification |
| PVA | Propellant Valve Actuator |